Finally fixed non-recursive algorithm - should now be fully usable, and is now emabled by default on non-win32 platforms.

Fixed a couple of buglets in the regex comparison benchmarks.


[SVN r18191]

include/boost/regex/v4/mem_block_cache.hpp

@@ -80,6 +80,7 @@ struct mem_block_cache
          mem_block_node* old = static_cast<mem_block_node*>(p);
          old->next = next;
          next = old;
+         ++cached_blocks;
       }
    }
 };